The dark lines represents the absorption of energy at that frequency, E=hf.
Joseph Von Fraunhofer as a German physicist who independently discovered (or rediscovered) dark "lines" in the emission spectra of the light emitted by the Sun. Fraunhofer carefully cataloged the precise frequencies of the light that was NOT being emitted by the Sun. Many years later, two other scientists realized that these colors of light were associated with the spectra of particular elements present in the Sun.
The earth gets it's light from the sun. During a total solar eclipse, the moon blocks that light.
Sunspots are dark circles on the sun's surface that are cooler than the area surrounding it. Another name for a sunspot is a solar variation or a dark spot.
I think it is by the solar energy? Maby
Anything that can reflect light is only visible to an eye... others which cannot are dark..
Dark lines in the spectrum were named after German physicist Joseph von Fraunhofer, who first systematically studied them. They are commonly known as Fraunhofer lines and are formed when certain chemical elements absorb specific wavelengths of light, creating dark bands in the spectrum.
Fraunhofer lines are dark absorption lines in the solar spectrum caused by specific elements absorbing certain wavelengths of light. These lines help astronomers identify the chemical composition of the Sun and other stars because each element absorbs light at characteristic wavelengths, leaving dark lines in the spectrum.
The dark lines are absorption spectrum, the energy absorbed by Atoms in the atmosphere of the star. ================================ Fraunhofer's spectral lines.
dark-line spectrum...
A dark line in a spectrum, also known as an absorption line, represents a specific wavelength of light that has been absorbed by a substance between the source of light and the observer. The presence of dark lines in a spectrum can provide information about the composition and properties of the absorbing material.
Absorption lines in a photographic spectrum appear as dark lines where specific wavelengths of light are absorbed by elements in a celestial object. These lines indicate the presence of elements in the object's atmosphere and can be identified by comparing their positions with known spectral lines of elements on Earth.
The dark lines in a star's spectrum are caused by absorption of specific wavelengths of light by the elements in the star's outer atmosphere. This absorption occurs when the elements in the atmosphere absorb photons of specific energies, leading to the creation of dark absorption lines in the spectrum.
A dark line found in a spectrum is called an absorption line. Absorption lines are created when atoms or molecules absorb specific wavelengths of light, resulting in dark lines in the spectrum where that light is missing.
Dark lines in an absorption spectrum are called absorption lines. These lines correspond to wavelengths of light that have been absorbed by specific elements or molecules in the sample being analyzed. They appear as dips or gaps in the spectrum where less light is detected.
An absorption spectrum can tell the astronomer or physicist what elements are in the starlight being observed. A diffraction grating is used to split the incoming light into a spectrum of colors. Sodium, for example, causes dark Fraunhofer lines at known points in the visible spectrum. Helium was discovered in the solar spectrum by Bunsen and Kirchoff using this technique. Hence the name derived from Helios for the Sun.
Because the spectrum of the star's light can be seen to have dark lines all the way through, and each element has its own set of dark lines in the star's spectrum.
The dark line spectrum was first observed by Joseph von Fraunhofer in 1814 during his study of the Sun's spectrum. These dark lines are now known as Fraunhofer lines and are caused by absorption of specific wavelengths of light by various elements in the Sun's atmosphere.